How to determine an effective potential for a variable cosmological term
Astrophysics
2009-10-31 v1 General Relativity and Quantum Cosmology
Abstract
It is shown that if a variable cosmological term in the present Universe is described by a scalar field with minimal coupling to gravity and with some phenomenological self-interaction potential , then this potential can be unambiguously determined from the following observational data: either from the behaviour of density perturbations in dustlike matter component as a function of redshift (given the Hubble constant additionally), or from the luminosity distance as a function of redshift (given the present density of dustlike matter in terms of the critical one).
Keywords
Cite
@article{arxiv.astro-ph/9810431,
title = {How to determine an effective potential for a variable cosmological term},
author = {A. A. Starobinsky},
journal= {arXiv preprint arXiv:astro-ph/9810431},
year = {2009}
}
Comments
Latex, 7 pages, JETP Lett., in press, 1998